An ultra-broadband watt-level terahertz BWO based upon novel sine shape ridge waveguide
Creators
- 1. National Key Laboratory of Science and Technology on Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 (China)
- 2. Department of Physics and Astronomy, Seoul National University, Seoul 151-747 (Korea, Republic of)
Description
A novel sine-shape ridge waveguide (SSRWG) is put forward to develop the ultra-broadband high power terahertz (THz) backward-wave oscillator (BWO). It is found that this kind of slow-wave structure (SWS) possesses very wide 'cold' bandwidth and quite low transmission losses from the analyses of the electromagnetic characteristics. Moreover, the beam-wave interaction results indicate that the BWO based upon the SSRWG SWS can produce the output power exceeding 0.625 W in the frequency range from 0.617 THz to 0.99 THz. In particular, the output power at the typical operating frequency of 0.853 THz can reach 1.186 W by using the sheet electron beam of 16 kV and 8 mA. Therefore, this device has great potential to be an ultra-broadband watt-level THz radiation source. (paper)
Availability note (English)
Available from http://dx.doi.org/10.1088/0022-3727/49/23/235102Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 49
- Journal Issue
- 23
- Journal Page Range
- [6 p.]
- ISSN
- 0022-3727
- CODEN
- JPAPBE
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 49019071
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ELECTRON BEAMS; OSCILLATORS; RADIATION SOURCES; SHAPE; SHEETS; THZ RANGE; TRANSMISSION; TUNGSTEN 186; WAVEGUIDES
- Descriptors DEC
- BEAMS; ELECTRONIC EQUIPMENT; EQUIPMENT; EVEN-EVEN NUCLEI; FREQUENCY RANGE; HEAVY NUCLEI; ISOTOPES; LEPTON BEAMS; NUCLEI; PARTICLE BEAMS; STABLE ISOTOPES; TUNGSTEN ISOTOPES